12030301212221 has 4 divisors (see below), whose sum is σ = 12064970668512. Its totient is φ = 11995631755932.

The previous prime is 12030301212203. The next prime is 12030301212233. The reversal of 12030301212221 is 12221210303021.

12030301212221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12030301212221 - 2⁴² = 7632254701117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12030301212193 and 12030301212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030301212421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17334727625 + ... + 17334728318.

It is an arithmetic number, because the mean of its divisors is an integer number (3016242667128).

Almost surely, 2^{12030301212221} is an apocalyptic number.

It is an amenable number.

12030301212221 is a deficient number, since it is larger than the sum of its proper divisors (34669456291).

12030301212221 is an equidigital number, since it uses as much as digits as its factorization.

12030301212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34669456290.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12030301212221 its reverse (12221210303021), we get a palindrome (24251511515242).

The spelling of 12030301212221 in words is "twelve trillion, thirty billion, three hundred one million, two hundred twelve thousand, two hundred twenty-one".